Energy System

• Carbohydrates: glucose
• Protein: Amino Acids
• Fats: Triglycerides

• No O2
• 0-10 secs
• High-Intensity Activity
• 2 ATP

• Phosphogen System: No O2, ATP-CP
• Lactic Acid System: No O2, Glucose
• Aerobic System: O2, Carbs, Fats, Proteins

Hydrolysis of ATP using enzyme ATPase = ADP +Pi (inorganic phosphate) + Energy

ADP + CP cataylzed by Creatine Kinase = ATP + C

2 ATP Produced

• Breakdown of carbohydrate glycogen or glucose to pyruvate to create ATP
• No O2
• 30sec -2 Min
• Sustained High Intensity activity
• Net 2 ATP

• Byproduct of glycolysis.
• Lactatic Acid in anaerobic activity
• Acetyl Coenzyme A (acetyl-CoA): Oxidated to form ATP.

• Activities lasting more than a couple minutes.
• Uses O2 and fuel to create energy.
• Carbs, Fat or Protein
• 36 ATP Produced

Lag in the oxygen consumption to meet required energy demand at the beginning of exercise or increased exertion.

• Excess Postexercise Oxygen Consumption.
• More than normal amounts of oxygen are consumed after exercise to restore PC in muscles and oxygen in blood and tissues.
• More intense/duration extends EPOC

When oxygen consumption meets required energy demands to produce ATP at a sustained rate.

Last step in Krebs Cycle and Electron Transport Chain to produce Water and ATP.

Use of gluscose, fats and glycogen to resynthesize ATP from acetyl-CoA.